tools/power/x86/intel-speed-select: Add an API for error/information print

Add a common API which can be used to print all error and information
messages. In this way a common format can be used.

For json output an error index in suffixed to make unique error key.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

tools/power/x86/intel-speed-select/isst-config.c

@@ -69,6 +69,11 @@ struct cpu_topology {
 	short die_id;
 };
 
+FILE *get_output_file(void)
+{
+	return outf;
+}
+
 void debug_printf(const char *format, ...)
 {
 	va_list args;

tools/power/x86/intel-speed-select/isst-display.c

@@ -515,15 +515,18 @@ void isst_ctdp_display_information(int cpu, FILE *outf, int tdp_level,
 	format_and_print(outf, 1, NULL, NULL);
 }
 
+static int start;
 void isst_ctdp_display_information_start(FILE *outf)
 {
 	last_level = 0;
 	format_and_print(outf, 0, "start", NULL);
+	start = 1;
 }
 
 void isst_ctdp_display_information_end(FILE *outf)
 {
 	format_and_print(outf, 0, NULL, NULL);
+	start = 0;
 }
 
 void isst_pbf_display_information(int cpu, FILE *outf, int level,
@@ -686,3 +689,44 @@ void isst_display_result(int cpu, FILE *outf, char *feature, char *cmd,
 
 	format_and_print(outf, 1, NULL, NULL);
 }
+
+void isst_display_error_info_message(int error, char *msg, int arg_valid, int arg)
+{
+	FILE *outf = get_output_file();
+	static int error_index;
+	char header[256];
+	char value[256];
+
+	if (!out_format_is_json()) {
+		if (arg_valid)
+			snprintf(value, sizeof(value), "%s %d", msg, arg);
+		else
+			snprintf(value, sizeof(value), "%s", msg);
+
+		if (error)
+			fprintf(outf, "Error: %s\n", value);
+		else
+			fprintf(outf, "Information: %s\n", value);
+		return;
+	}
+
+	if (!start)
+		format_and_print(outf, 0, "start", NULL);
+
+	if (error)
+		snprintf(header, sizeof(header), "Error%d", error_index++);
+	else
+		snprintf(header, sizeof(header), "Information:%d", error_index++);
+	format_and_print(outf, 1, header, NULL);
+
+	snprintf(header, sizeof(header), "message");
+	if (arg_valid)
+		snprintf(value, sizeof(value), "%s %d", msg, arg);
+	else
+		snprintf(value, sizeof(value), "%s", msg);
+
+	format_and_print(outf, 2, header, value);
+	format_and_print(outf, 1, NULL, NULL);
+	if (!start)
+		format_and_print(outf, 0, NULL, NULL);
+}

tools/power/x86/intel-speed-select/isst.h

@@ -172,6 +172,7 @@ extern int get_cpu_count(int pkg_id, int die_id);
 extern int get_core_count(int pkg_id, int die_id);
 
 /* Common interfaces */
+FILE *get_output_file(void);
 extern void debug_printf(const char *format, ...);
 extern int out_format_is_json(void);
 extern int get_physical_package_id(int cpu);
@@ -252,4 +253,5 @@ extern void isst_clos_display_clos_information(int cpu, FILE *outf,
 extern int is_clx_n_platform(void);
 extern int get_cpufreq_base_freq(int cpu);
 extern int isst_read_pm_config(int cpu, int *cp_state, int *cp_cap);
+extern void isst_display_error_info_message(int error, char *msg, int arg_valid, int arg);
 #endif